Revert "Polymer elements added to third_party/polymer."

third_party/polymer/components/web-animations-js/tools/python/setup.sh

-#! /bin/bash
-
-# Create the python environment needed by run-tests.py and closure-linter and
-# other Python tools.
-
-OLD_PWD=$PWD
-
-DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
-
-cd $DIR
-if [ ! -f bin/activate ]; then
-  echo "Setting up Python environment in $DIR"
-
-  if [ x$(which pip) == x -o x$(which virtualenv) == x ]; then
-    cat <<EOF
-Can not autoinstall as pip and virtualenv are not avaliable.
-
-To install 'pip' please do one of the following;
-
-# sudo apt-get install python-pip python-virtualenv
-
-or
-
-# sudo easy_install pip
-# sudo pip install virtualenv
-EOF
-    exit 1
-  fi
-
-  if virtualenv --system-site-packages .; then
-    echo -e;
-  else
-   cat <<EOF
-Was unable to set up the virtualenv environment. Please see output for errors.
-EOF
-    exit 1
-  fi
-fi
-
-source bin/activate
-
-function ensureRequirementsMet() {
-  # Check if installed
-  pip install --no-download $@ > /dev/null 2>&1
-  if [ $? -ne 0 ]; then
-    # Install dependencies
-    pip install --upgrade $@
-    if [ $? -ne 0 ]; then
-      cat <<EOF
-Unable to install dependencies. Please see error output above.
-EOF
-      exit 1
-    fi
-  fi
-}
-
-ensureRequirementsMet 'pip>=1.5'
-ensureRequirementsMet -r requirements.txt
-
-cd $OLD_PWD